Thermalright SK-7 Heatsink From All Angles
	The Fan: The 80mm fan is pretty quiet, but still moves a good amount of air each minute. To keep the fan in place, the two wire clips lock into the screw holes on each corner of the frame. This attachment method works pretty well, but can be a bit troublesome if you wish to use a fan grill. There are built in recesses in the top of the SK-7 for 80mm, 75mm TMD, and 60mm fans to sit.
	Heatsink Top: There are 36 sets of thin copper fins on the SK-7. Each fin measures about 0.35mm thick and is a spaced 1mm apart. The fins each have a small copper fold at the base 1mm wide which allows them to be soldered to the copper base. The thermal interface between the fins and the base is the most critical, so it is important for the solder joint to be quiet solid.
	Side A: Composed of 36 identical copper fins punched out from a sheet of the material, the SK-7 is pretty simple all things considered. At the top of the fins you can see the two rows of interlocking tabs and key, and then towards the outer edges the steps for the different sized fans from 60mm-80mm. The middle step is for TMD fans which are 75mm wide. The tabs for the fan clips can be seen at the bottom corner. While the SK-7 does require a screwdriver to engage, the three tabs lock into the socket securely making the job of mounting it pretty easy.
	Side B: Looking at the other side you can see the basic fin structure that has gone into making this heatsink. The base of the SK-7 is 7mm thick milled copper.
	Heatsink Base: The main portion of the copper base measures 49x55mm, but if we measure the entire area is sits in at 60x66mm. The surface finish is machined, and the base is nice and flat behind all that left over adhesive. Notice the four tabs, one at each corner, that the spring clips hook into to hold the fan.